title: Penicillin-resistant gonococcal arthritis. A report of four cases.
mesh_terms: D000328:Adult; D001170:Arthritis, Infectious / Q000188:drug therapy*; D005260:Female; D006069:Gonorrhea / Q000188:drug therapy*; D006801:Humans; D008297:Male; D009344:Neisseria gonorrhoeae / Q000201:enzymology; D010403:Penicillin Resistance; D010405:Penicillinase / Q000096:biosynthesis
chemical_list: D010405:Penicillinase